The black-footed ferret is a medium-sized mustelid typically weighing 1.4 to 2.5 pounds (lbs) and measuring 19 to 24 inches in total length. Upper body parts are yellowish buff, occasionally whitish; feet and tail tip are black; and a black “mask” occurs across the eyes. It is the only ferret species native to the Americas (there are no recognized subspecies). Other ferret species in the genus include the Siberian polecat (M. eversmanni) and the European ferret (M. putorius).

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